Princeton Tec offers a full line of lights, from handheld to head mounted. Many of them have been assigned National Stock Numbers which are critical for units that rely solely on the standard stock system. One example is the Vizz Tactical headlamp.
It offers up to 550 lumens for up to 66 hours from three AAA batteries and is IPX7 rated.
The lamps include the following and can be programmed for which comes on first:
1 Maxbright LED (dimmable)
1 Red Ultrabright LED
1 Blue Ultrabright LED
1 Green Ultrabright LED
1 IR Ultrabright LED
This chart breaks down how far each lamp will throw and how long it will run.
The NSN is: 6230-01-676-6148 with a noun of LIGHT, HEAD, UTILITY
For those of you who wish to purchase a Vizz Tactical directly from Princeton Tec, visit princetontec.com/product/vizz-tactical.